WATERMARK by ENYA has sold 8,404,264 copies in 15 countries. The album sold best in United States (4,300,000 copies), United Kingdom (1,200,000 copies) and Germany (500,000 copies).
WATERMARK certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Argentina |
120,000 | 2x Platinum |
Argentina Sales: 120,000
Certification / note: 2x Platinum
Certification Date / sales as of:
|
|
 Australia |
420,000 | 6x Platinum | JULY 1996 |
Australia Sales: 420,000
Certification / note: 6x Platinum
Certification Date / sales as of: JULY 1996
|
 Belgium |
50,000 | 1x Platinum | 2007 |
Belgium Sales: 50,000
Certification / note: 1x Platinum
Certification Date / sales as of: 2007
|
 Brazil |
250,000 | 1x Platinum | 1996 |
Brazil Sales: 250,000
Certification / note: 1x Platinum
Certification Date / sales as of: 1996
|
 Canada |
300,000 | 3x Platinum | 1993 |
Canada Sales: 300,000
Certification / note: 3x Platinum
Certification Date / sales as of: 1993
|
 France |
200,000 | 2x Gold | 17 October, 2001 |
France Sales: 200,000
Certification / note: 2x Gold
Certification Date / sales as of: 17 October, 2001
|
 Germany |
500,000 | 1x Platinum | 1995 |
Germany Sales: 500,000
Certification / note: 1x Platinum
Certification Date / sales as of: 1995
|
 Japan |
400,000 | 2x Platinum | April 1998 |
Japan Sales: 400,000
Certification / note: 2x Platinum
Certification Date / sales as of: April 1998
|
 Netherlands |
100,000 | 1x Platinum | 1991 |
Netherlands Sales: 100,000
Certification / note: 1x Platinum
Certification Date / sales as of: 1991
|
 New Zealand |
15,000 | 1x Platinum |
New Zealand Sales: 15,000
Certification / note: 1x Platinum
Certification Date / sales as of:
|
|
 Norway |
24,264 | Year-end list | 1989 |
Norway Sales: 24,264
Certification / note: Year-end list
Certification Date / sales as of: 1989
|
 Spain |
500,000 | 5x Platinum | 2001 |
Spain Sales: 500,000
Certification / note: 5x Platinum
Certification Date / sales as of: 2001
|
 Switzerland |
25,000 | 1x Gold | 1998 |
Switzerland Sales: 25,000
Certification / note: 1x Gold
Certification Date / sales as of: 1998
|
 United Kingdom |
1,200,000 | 4x Platinum | 1 September, 1993 |
United Kingdom Sales: 1,200,000
Certification / note: 4x Platinum
Certification Date / sales as of: 1 September, 1993
|
 United States |
4,300,000 | 4x Platinum | 15 March, 1996 |
United States Sales: 4,300,000
Certification / note: 4x Platinum
Certification Date / sales as of: 15 March, 1996
|
| Total sales | 8,404,264 | (in 15 countries) |
Total
Sales: 8,404,264
(in 15 countries)
|
Year-end chart performance for WATERMARK
| Chart 1988 | Rank | Sales |
| Dutch Albums (Album Top 100) |
41 | |
| Norwegian Albums (Dagbladet) |
42 | 24,264 |
| UK Albums (Music Week) |
43 | 310,000 |
| Chart 1989 | Rank | Sales |
| Australian Albums (ARIA) |
29 | |
| Canadian Albums (RPM) |
16 | |
| Dutch Albums (Album Top 100) |
52 | |
 European Albums (Music & Media) |
36 | |
| German Albums (Offizielle Top 100) |
59 | |
| Japanese Albums (Oricon) |
69 | 180,280 |
| New Zealand Albums (RMNZ) |
8 | |
 Portuguese International Albums (Música & Som) |
7 | |
| Swiss Albums (Schweizer Hitparade) |
17 | |
| UK Albums (Music Week) |
30 | 400,000 |
| UK Artist Albums |
24 | |
| US Albums (Billboard 200) |
60 | |
| Chart 1992 | Rank | Sales |
| Australian Albums (ARIA) |
44 | |
| UK Artist Albums |
100 |